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Does the Doppler Effect occur when both the source and observer are moving at the same velocity?
Wiki User
∙ 14y ago
No. There has to be a relative velocity.
Wiki User
∙ 14y ago
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When a sound source is moving away from an observer the observer will hear a lower pitch. This is due to?
This is due to the Doppler effect.
What is the Doppler effect on sound?
The Doppler effect is a phenomenon observed whenever the source of waves is moving with respect to an observer. The Doppler effect can be described as the effect produced by a moving source of waves in which there is an apparent upward shift in frequency for the observer and the source are approaching and an apparent downward shift in frequency when the observer and the source is receding. The Doppler effect can be observed to occur with all types of waves - most notably water waves, sound waves, and light waves.
The apparent change in the frequency of a sound emitted by a moving object as it passes a stationary observer is called the what effect?
Doppler effect.
What is A change in the observed wavelength or frequency of a wave that occurs when the source of the wave or the observer is moving?
Doppler Effect :)
Can anyone give definition for Doppler frequency?
It is not Doppler frequency. It's Doppler effect. The APPARENT change in the frequency of the source as there is a relative motion between the source and the observer is defined as Doppler effect. The expression for frequency (apparent) is given fapparent = [(C - Vo + Vm)/(C-Vs+Vm)] x freal The condition to be kept in mind is that the source is on the left side and the observer on the right side along positive X axis. Vm - velocity of the medium and the medium is moving along positive X axis. Vo - the velocity of the observer Vs - the velocity of the source C - velocity of the wave either sound or light But in case of light Vm is not needed as the medium movement will not affect the velocity of the wave in any way.
The Doppler Effect is a phenomenon that allows one to measure an object's?
The doppler effect is the change in frequency of a wave for an observer moving relative to the source of the wave. You can measure the location and velocity of a locomotive moving towards or away from your. You can measure a star's location and velocity vector regarding the shift and color emanating from the star light. This is calculated via doppler light equations.
When a sound source is moving away from an observer the observer will hear a lower pitch. This is due to?
This is due to the Doppler effect.
How do you explain Doppler effect?
Doppler effect generally is the change in frequency of a wave( majorly sound wave) for an observer moving relative to the source of the wave. f=[(v+vr)/(v+vs)]f0 where is the velocity of waves in the medium is the velocity of the receiver relative to the medium; positive if the receiver is moving towards the source. is the velocity of the source relative to the medium; positive if the source is moving away from the receiver. For more refer to article http://en.wikipedia.org/wiki/Doppler_effect
What is the Doppler effect on sound?
The Doppler effect is a phenomenon observed whenever the source of waves is moving with respect to an observer. The Doppler effect can be described as the effect produced by a moving source of waves in which there is an apparent upward shift in frequency for the observer and the source are approaching and an apparent downward shift in frequency when the observer and the source is receding. The Doppler effect can be observed to occur with all types of waves - most notably water waves, sound waves, and light waves.
The apparent change in the frequency of a sound emitted by a moving object as it passes a stationary observer is called the what effect?
Doppler effect.
What is A change in the observed wavelength or frequency of a wave that occurs when the source of the wave or the observer is moving?
Doppler Effect :)
Why doesn't the Doppler shift appear when an observer moves toward the source?
Doppler's effect does not happen when the observer is moving towards the source because unlike the source when observer moves forward the waves are not compressed and they pass the observer without being compressed and since the doppler effect is due to the Change in wavelength of the wave, it fails to occur.
Can anyone give definition for Doppler frequency?
It is not Doppler frequency. It's Doppler effect. The APPARENT change in the frequency of the source as there is a relative motion between the source and the observer is defined as Doppler effect. The expression for frequency (apparent) is given fapparent = [(C - Vo + Vm)/(C-Vs+Vm)] x freal The condition to be kept in mind is that the source is on the left side and the observer on the right side along positive X axis. Vm - velocity of the medium and the medium is moving along positive X axis. Vo - the velocity of the observer Vs - the velocity of the source C - velocity of the wave either sound or light But in case of light Vm is not needed as the medium movement will not affect the velocity of the wave in any way.
What is a dopper effect?
The Doppler effect is the change in frequency or wavelength of a wave for an observer who is moving relative to the wave source. It is named after the Austrian physicist Christian Doppler, who described the phenomenon in 1842.
What is the effect in the change in wave frequency caused by the motion of the source of the wave?
Austrian physicist Christian Johann Doppler (1803-1853)discovered that a wave's frequency changes when the source and observer are in motion relative to one another. This is known as the Doppler effect.
Is true of the Doppler effect?
the Doppler effect involves moving objectsthe Doppler effect involves moving objects
What is an apparent lowering of pitch because the sound source is moving?
This is a Doppler shift. Pitch appears lower when an object moves away from the observer.
